<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>My first three.js app</title>
    <style>
        body { margin: 0; }
    </style>
</head>
<body>
<script type="module">
    import * as THREE from 'https://unpkg.com/three/build/three.module.js';

    // 初始化
    const scene = new THREE.Scene();
    const camera = new THREE.PerspectiveCamera( 75, window.innerWidth / window.innerHeight, 0.1, 1000 );

    const renderer = new THREE.WebGLRenderer();
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );


    const geometry = new THREE.BoxGeometry( 1, 1, 1 );
    const material = new THREE.MeshBasicMaterial( { color: 0x00ff00 } );
    const cube = new THREE.Mesh( geometry, material );
    scene.add( cube );

    camera.position.z = 5;

    function animate() {
        requestAnimationFrame( animate );
        cube.rotation.x += 0.01;
        cube.rotation.y += 0.01;
        renderer.render( scene, camera );
    }
    animate();
</script>
</body>
</html>
